User Manual

9
4 Operating Instructions
Safety Precautions
● This power supply is for indoor use only.
● Do not expose the power supply to sun, high humidity, or dusty
environments.
● Never remove the metal cover of the power supply while AC power is
connected.
● Never touch the unit when your hands are wet.
● Never block the ventilation slots and cooling fan air intake window.
● Never attempt to repair the power supply. Incorrect re-assembly may
result in a risk of electric shock or fire.
● Never use the power supply for a load requiring higher current than the
designed value. Otherwise it may damage the power supply.
● Place the power supply on a flat surface with sufficient clearance and dry,
dust-free surroundings for ventilation.
This series has three models with different output voltage and current ranges. Make
sure you have purchased the correct one.
Model Number Output Voltage Range Total Rated Current
1685B 1 – 60 V 0 – 5 A
1687B 1 – 36 V 0 – 10 A
1688B 1 – 18 V 0 – 20 A
Table 1 - Model Table